2021 Trek Emonda SLR 7 Road Bike in Rage Red/ Trek Black is an ultralight, aerodynamic carbon road bike designed & built to be the fastest climbing bike Trek have ever made. The Emonda SLR 7 features an ultra-light aerodynamic 800 Series OCLV Carbon frame that, according to Trek, is the lightest they have ever made weighing in at under 700 grams. Bontrager Aeolus Pro 37 OCLV Carbon tubeless-ready wheels are designed for climbing & developed alongside the Émonda. The Aeolus RSL OCLV Carbon integrated aero bar/stem & ultralight Bontrager Aeolus RSL 37 OCLV Carbon tubeless-ready wheels with Bontrager R3 Hard-Case Lite tyres further works to keep the weight down & speed up. Speaking of speed, you want those seamless gear changes. Trek deliver using the Shimano Ultegra Di 2 electronic drivetrain giving lightning-fast precision shifting, coupled with Shimano Ultegra R8000 crank for more effective training rides from the start. Going that fast, you need stopping power, & you have it with the powerful Shimano Ultegra hydraulic disc brakes. This bike is great for Attention to detail to make a super fast & light bike make the Emonda ideal for beating your PB's getting you up the climbs first & winning those competitions. Features Fast & stable Bontrager Aeolus RSL 37 OCLV Carbon tubeless-ready wheels Shimano Ultegra Di 2 electronic drivetrain Ultra-light & aerodynamic 800 Series OCLV Carbon frame Aeolus RSL OCLV Carbon integrated aero bar/stem Shimano Ultegra R8000 Shimano Ultegra hydraulic disc brakes. Bontrager Aeolus Elite, austenite rails, 145 mm width saddle